Structural Box Section компании по импорту для structural box section компаний по экспорту

We are looking for steel box pipes for culvert crossings on roads (Bridge uses). Below are the specifications: Length: 13 meters Diameter: 1.2 to 2 meters Thickness: 15mm to 20mm Pipe Weight: Please specify Technical Specifications and Manufacturing Standards: Please specify Price: Please provide Delivery Times: Please provide